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Medicine liquid injection device for injecting plural kinds of medicine liquid without mixing them

  • US 20060167415A1
  • Filed: 08/06/2003
  • Published: 07/27/2006
  • Est. Priority Date: 08/08/2002
  • Status: Abandoned Application
First Claim
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1. A liquid injector for injecting a liquid into a patient from a syringe having a cylinder member and a piston member inserted slidably into the cylinder member, comprising:

  • a patient tube having a leading end connected to the patient;

    a plurality of syringe tubes, each of their trailing ends being connected to each of a plurality of the syringes;

    tube connecting means for connecting a trailing end of the patient tube to leading ends of a plurality of the syringe tubes;

    a syringe hold member for removably holding a plurality of the syringes;

    a plurality of syringe drive mechanisms, each of the mechanisms causing each of a plurality of the syringes to perform injection of the liquid by relatively moving the cylinder member and/or the piston member;

    a plurality of tube block mechanisms, each of the mechanisms blocking each of a plurality of the syringe tubes to allow opening or closing thereof; and

    interlock control means for interlocking operation of a plurality of the tube block mechanisms and a plurality of the syringe drive mechanisms to open only one of the syringe tubes and drive only one of the syringes associated with the opened syringe tube.

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